KANZI
EA
Document · BW-DOC-0212

Report GS-0212, Francistown district gold workings (1934)

Handwritten field notes and sketch maps; 12 low-confidence pages in the review queue.

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BGI → Scanned reports: 40BGI → Map sheets: 18BGI → Geophysics archive: 22BGI → Lab results: 14MME / DoM → BCL archive: 20MME / DoM → Cadastre extract: 8 (live pull)Companies → Boseto DB: 10DWA → Borehole logs: 7Copernicus → Sentinel-2 scenes: 12 (live pull)Scanned reports → Soma OCR / HTR: 40Map sheets → Georeferencing: 18Geophysics archive → Media conversion: 12Geophysics archive → Structured ETL: 10Lab results → Structured ETL: 14BCL archive → Soma OCR / HTR: 12BCL archive → Media conversion: 8Cadastre extract → Structured ETL: 8 (live pull)Boseto DB → Structured ETL: 10Borehole logs → Soma OCR / HTR: 7Sentinel-2 scenes → EO processing: 12 (live pull)Soma OCR / HTR → Extracted documents: 30Soma OCR / HTR → Mineral occurrences: 14Soma OCR / HTR → BCL drillholes: 8Soma OCR / HTR → Hydro boreholes: 7Georeferencing → Geology 1:250k: 12Georeferencing → Mineral occurrences: 6Media conversion → Magnetics: 8Media conversion → Gravity: 6Media conversion → BCL drillholes: 6Structured ETL → Airborne EM: 6Structured ETL → Magnetics: 4Structured ETL → Soil geochemistry: 14Structured ETL → Cadastre: 8 (live pull)Structured ETL → Boseto drillholes: 10EO processing → Alteration indices: 12 (live pull)Mineral occurrences → Copper cu-v3.2: 10Mineral occurrences → Gold au-v1.1: 8Mineral occurrences → Nickel ni-v2.0: 6Geology 1:250k → Copper cu-v3.2: 6Geology 1:250k → Geological map: 6Magnetics → Copper cu-v3.2: 7Magnetics → Magnetic interpretation: 5Airborne EM → Nickel ni-v2.0: 6Gravity → Lithium li-v1.4: 3Gravity → Nickel ni-v2.0: 3Soil geochemistry → Copper cu-v3.2: 8Soil geochemistry → Cu pathfinder map: 6BCL drillholes → Nickel ni-v2.0: 8Boseto drillholes → Copper cu-v3.2: 10Hydro boreholes → Lithium li-v1.4: 7Alteration indices → Copper cu-v3.2: 6Alteration indices → Gold au-v1.1: 6Cadastre → Target packages: 8 (live pull)Extracted documents → REE ree-v0.9: 4Copper cu-v3.2 → Cu prospectivity map: 20Copper cu-v3.2 → Target packages: 17Nickel ni-v2.0 → Target packages: 12Lithium li-v1.4 → Target packages: 8Gold au-v1.1 → Target packages: 8REE ree-v0.9 → Target packages: 2Nickel ni-v2.0 → Investor data rooms: 8Copper cu-v3.2 → Investor data rooms: 14Lithium li-v1.4 → Investor data rooms: 4BGIGeoscience custodianGovernedDWAWater affairsIn progressMME / DoMMinistry and minesGovernedCompaniesKhoemacau, BCL archiveIn progressCopernicusPublic Earth observationLive pullScanned reports11,236 PDFs · BGIIn progressMap sheets1:250k, 1:50k · BGIGovernedLab resultsCSV, XLSX · BGIGovernedGeophysics archiveTapes, GDB · BGIIn progressBorehole logsPaper · DWAIn progressBCL archivePaper, microfiche · MMEIn progressCadastre extractWeekly pull · DoMLive pullBoseto DBAgreement · KhoemacauGovernedSentinel-2 scenesOn demand · CopernicusLive pullSoma OCR / HTRAgentic extractionIn progressGeoreferencingCRS harmonisedGovernedStructured ETLSchema mappingGovernedMedia conversionTapes, floppiesIn progressEO processingBand ratios, PCALive pullMineral occurrenc…Points · BGIGovernedExtracted documen…Text and tables · BGIIn progressBoseto drillholesAssays · KhoemacauGovernedGeology 1:250kPolygons · BGIGovernedBCL drillholesCollars, assays · MMEIn progressHydro boreholesLogs · DWAIn progressSoil geochemistrySamples · BGIGovernedAirborne EMGrid · BGIGovernedCadastreTenure polygons · DoMLive pullMagneticsGrid · BGIGovernedGravityGrid · BGIGovernedAlteration indicesRaster · CopernicusLive pullREE ree-v0.9Illustrative · deferredDeferredCopper cu-v3.2Illustrative · blind 0.…GovernedNickel ni-v2.0Illustrative · blind 0.…GovernedGold au-v1.1Illustrative · blind 0.…In progressLithium li-v1.4Illustrative · semi-sup…In progressCu prospectivity…Screening productGovernedTarget packages10 rankedGovernedInvestor data roo…3 openGovernedGeological mapNational · BGI creditedGovernedCu pathfinder mapScreening productGovernedMagnetic interpre…RTP, derivativesGoverned
100%
Data flow
Migrated once
Live pull
Model output, commodity colour
Off the selected path
GovernedIn progressLive pullDeferred
Strand count follows volume. Models are illustrative.
Upstream sources
Feeds
Audit trail
Append-only
WhenWhoWhat
2026-09-08 14:05EICB curatorAdded to data room: Kalahari Copperbelt
2026-09-02 09:12Pipeline etl-geochem-v4Reloaded, 18,420 rows, checksum ok
2026-08-30 16:40T. KgosiConfidence class A confirmed (CRM, blanks, duplicates)
2026-08-21 11:02Data stewardClassification set to public
Metadata
ISO 19115 core
Custodian
Botswana Geoscience Institute
Source organisation
Geological Survey (pre-independence)
Confidence
C Class C
Review status
machine
Visibility
public
Records
46
Coverage
900 km²
Vintage
1934
Format
Scanned PDF, handwritten
CRS
n/a
Updated
2026-09-08
Quality
Completeness
70%
Spatial accuracy
Sketch map ±1 km
QA/QC
Awaiting review
Exports
Generated from the governed source
Bundles carry a manifest: catalogue codes, confidence, licence, checksums.